Solution 1:

In my obviously biased opinion, the advantages of wxWidgets are:

  • Native widgets (as far as possible) guarantee native look and feel
  • Standard C++ only, no special preprocessor/extensions
  • Possible to link statically to closed source applications without buying a commercial licence

Also, whether it's an advantage or a disadvantage is up to you to decide, but wxWidgets is primarily a GUI library and seeks to play well with the other specialized libraries (like SOCI or asio, for database and network support, respectively) instead of trying to be the one and only true library for everything.

Solution 2:

If you are comparing wxWidgets with Qt, wxWidgets literally stands no where. Qt is a complete framework where you can write code and generate GUI for Linux, Windows, MAC, Android, IOS and even blackberry, and other embedded systems. It has classes for almost anything you wish to do, from controlling your webcam to bluetooth devices etc. Unless you are doing something very specific, you won't need any 3rd party library.

On the other hand, wxWidgets, essentially offers a way of creating GUI, with many other classes too but they are quite few in comparison to Qt.